Home / 17,717.28-26,586.32-7,857.68

Finding the Fourth Proportional to 17,717.28, 26,586.32 and 7,857.68

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Solution

The fourth proportional to 17,717.28, 26,586.32 and 7,857.68 is: 11,791.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,717.28 : 26,586.32 = 7,857.68 : x
  2. Step 2: Convert to fraction form
    17,717.28/26,586.32 = 7,857.68/x
  3. Step 3: Cross multiply
    17,717.28x = 26,586.32 × 7,857.68
  4. Step 4: Simplify right side
    17,717.28x = 208,906,794.94
  5. Step 5: Solve for x
    x = 208,906,794.94/17,717.28
  6. Step 6: Final answer
    x = 11,791.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.